The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 09, 1982
Filed:
Mar. 14, 1980
Paolo Lucchini, Udine, IT;
Luciano Nebbia, Turin, IT;
Abstract
A multichannel digital speech synthesizer comprises a pulse generator storing periodic and aperiodic excitation signals to be processed in a lattice filter according to weighting parameters, such as gain and reflection coefficients, transmitted from a computer via a control unit and a plurality of input modules assigned to respective output channels. Each input module includes a resettable counter for timing the emissions of periodic or aperiodic excitation signals, to generate a voiced or an unvoiced speech element, and for requesting a new set of parameters from the computer upon detecting the end of a validity interval for a current set of parameters; the module further comprises a pair of buffer memories alternating in reading and writing operations under the control of the counter to ensure a continuous flow of parameter sets to the filter.